The first symptom(s) of a crippling disease called spinocerebellar degeneration
a. are hyperactivity and a lack of attention.
b. are tremor, dizziness, and muscular weakness.
c. is an inability to recognize faces and familiar surroundings by sight alone.
d. is an inability to store new long-term verbal memories.
ANSWER: b
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One piece of evidence that suggests the survival value or adaptation theory of sleep may partially explain why we sleep is the finding that:
a. people show the same pattern of sleep after inactive days and active days b. people show more REM-sleep after an inactive day than after an active day c. large, grazing animals that can't easily hide sleep only a few hours a day d. people show less sleep disturbance in normal daylight cycles than in conditions of constant light
According to the law of effect, behavior that is followed by positive consequences is weakened
Indicate whether the statement is true or false
The most important factor in the majority of the cases, more than 75 percent, where DNA evidence led to the overturning of a unjust conviction of an innocent person was
A) false confessions. B) mistaken eyewitness identification. C) the use of jailhouse snitches. D) the use of "junk" science.
A dependent variable is operationally defined according to _____
a. the way it is manipulated c. according to a narrative b. the way it is measured d. either a or b